Alpha Hou — 17 Patents at Syscan

Alpha Hou has been granted 17 US patents while listed as an inventor at Syscan. The first was granted in 2000 and the most recent in February 2025. Alpha Hou ranks #263,971 of 4,157,543 US inventors in our database (top 6.3%). Patent records list Alpha Hou in Las Vegas, NV, US.

Issued Patents All Time

Showing 1–17 of 17 patents

Patent #	Title	Co-Inventors	Date
12217564	Banknote validation device and processing inspection apparatus	—	2025-02-04
6922284	Method for automatically controlling the length of projection screen and multi-purpose apparatus thereof	—	2005-07-26
6891979	Pocket scanners	Darwin Hu, Jung-Chih Huang, Paul Tin Choy Cheung, Hongwei Sun, Yingfeng Lv	2005-05-10
6836361	Method and apparatus to increase visual contrast for video projection screen	—	2004-12-28
6704124	Mobile scanners	Darwin Hu, Dongtai Liu, Chengrong Lu	2004-03-09
6646682	Linear tri-color image sensors	—	2003-11-11
6603108	Image sensing modules for portable optical scanners	Chengwu Gu	2003-08-05
6596979	Method and apparatus for scanning colors using multiple arrays of photodetectors	—	2003-07-22
6587145	Image sensors generating digital signals from light integration processes	—	2003-07-01
6546152	Method and apparatus for providing images in portable 2-D scanners	—	2003-04-08
6459506	Lightweight dual-mode mobile scanner powered from a universal serial bus port	Darwin Hu	2002-10-01
6275309	Lightweight mobile scanners	Darwin Hu, Dongtai Liu, Chengrong Lu	2001-08-14
6271939	Transparent and flatbed scanner	Darwin Hu	2001-08-07
6249618	Circuit architecture and method for switching sensor resolution	—	2001-06-19
6104510	Hybrid illumination system for accelerating light integration in image sensing systems	Darwin Hu	2000-08-15
6054707	Portable scanners capable of scanning both opaque and transparent materials	—	2000-04-25
6031639	Apparatus for scanning both opaque transparent originals	Darwin Hu, Lawrence Huang	2000-02-29

Alpha Hou — 17 Patents

Issued Patents All Time

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